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musti463
Joined: 19 Sep 2013 Posts: 66
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PIC not working with 20 MHz Crystal |
Posted: Sun Dec 28, 2014 7:54 am |
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Hello,
I am still trying RS485 communication and i need to change 4 MHz crystal to 20 MHz. System working with 4MHz crystal but when i change with 20 MHz PIC not working. There isn't any image on GLCD. What is the problem? _________________ M.Emir SADE |
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temtronic
Joined: 01 Jul 2010 Posts: 9463 Location: Greensville,Ontario
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Posted: Sun Dec 28, 2014 8:34 am |
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post a small program that fails. Usually you start with the simple 1Hz LED program (just setup PIC, and have main() 'toggle' an I/O pin connected to an LED. show us your code and we can help...
jay |
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